Jet spa



FIG. 1 is a front view of a jet spa showing my new design;

FIG. 2 is a bottom plan thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof; and,

FIG. 7 is a perspective view thereof.

The features shown in broken lines depict environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a jet spa, as shown and described. 